Qwt User's Guide svn
Public Member Functions
QwtPoint3D Class Reference

#include <qwt_point_3d.h>

List of all members.

Public Member Functions

bool isNull () const
bool operator!= (const QwtPoint3D &) const
bool operator== (const QwtPoint3D &) const
 QwtPoint3D ()
 QwtPoint3D (double x, double y, double z)
 QwtPoint3D (const QwtPoint3D &)
 QwtPoint3D (const QPointF &)
double & rx ()
double & ry ()
double & rz ()
void setX (double x)
void setY (double y)
void setZ (double y)
QPointF toPoint () const
double x () const
double y () const
double z () const

Detailed Description

QwtPoint3D class defines a 3D point in double coordinates.


Constructor & Destructor Documentation

QwtPoint3D::QwtPoint3D ( ) [inline]

Constructs a null point.

See also:
isNull()
QwtPoint3D::QwtPoint3D ( double  x,
double  y,
double  z = 0.0 
) [inline]

Constructs a point with coordinates specified by x, y and z.

QwtPoint3D::QwtPoint3D ( const QwtPoint3D other) [inline]

Copy constructor. Constructs a point using the values of the point specified.

QwtPoint3D::QwtPoint3D ( const QPointF &  other) [inline]

Constructs a point with x and y coordinates from a 2D point, and a z coordinate of 0.


Member Function Documentation

bool QwtPoint3D::isNull ( ) const [inline]

Returns true if the point is null; otherwise returns false.

A point is considered to be null if x, y and z-coordinates are equal to zero.

bool QwtPoint3D::operator!= ( const QwtPoint3D other) const [inline]

Returns true if this rect and other are different; otherwise returns false.

bool QwtPoint3D::operator== ( const QwtPoint3D other) const [inline]

Returns true if this point and other are equal; otherwise returns false.

double & QwtPoint3D::rx ( ) [inline]

Returns a reference to the x-coordinate of the point.

double & QwtPoint3D::ry ( ) [inline]

Returns a reference to the y-coordinate of the point.

double & QwtPoint3D::rz ( ) [inline]

Returns a reference to the z-coordinate of the point.

void QwtPoint3D::setX ( double  x) [inline]

Sets the x-coordinate of the point to the value specified by x.

void QwtPoint3D::setY ( double  y) [inline]

Sets the y-coordinate of the point to the value specified by y.

void QwtPoint3D::setZ ( double  y) [inline]

Sets the z-coordinate of the point to the value specified by z.

QPointF QwtPoint3D::toPoint ( ) const [inline]

Rounds 2D point, where the z coordinate is dropped.

double QwtPoint3D::x ( ) const [inline]

Returns the x-coordinate of the point.

double QwtPoint3D::y ( ) const [inline]

Returns the y-coordinate of the point.

double QwtPoint3D::z ( ) const [inline]

Returns the z-coordinate of the point.

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